The 9/10 Update appears to have been released. Some of the more noticeable
ZFS stuff that made it in:

> * Triple parity RAID-Z (raidz3) – In this release, a redundant RAID-Z
>   configuration can now have either single-parity, double-parity, or
>   triple- parity, which means that one, two, or three device failures can
>   be sustained respectively, without any data loss. You can specify the
>   raidz3 keyword for a triple-parity RAID-Z configuration when the
>   storage pool is created.
>
> * ZFS log device enhancements – The following log device enhancements are
>   available in this release:
[...]
>    . Log device removal – You can now remove a log device from a storage
>      pool by using the zpool remove command. [...]
>
> * ZFS storage pool recovery – A storage pool can become damaged if
>   underlying devices become unavailable, if a power failure occurs, or if
>   more than the supported number of devices fail in a redundant ZFS
>   configuration. This release provides new command features for
>   recovering your damaged pool. However, using this recovery feature
>   means that the last few transactions that occurred prior to the pool
>   outage might be lost.

More at:

http://docs.sun.com/app/docs/doc/821-1840/gijtg


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